Finding the Fourth Proportional to 10,345.98, 14,269.61 and 7,164.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,345.98 : 14,269.61 = 7,164.59 : x
2. Step 2: Convert to fraction form
   10,345.98/14,269.61 = 7,164.59/x
3. Step 3: Cross multiply
   10,345.98x = 14,269.61 × 7,164.59
4. Step 4: Simplify right side
   10,345.98x = 102,235,869.29
5. Step 5: Solve for x
   x = 102,235,869.29/10,345.98
6. Step 6: Final answer
   x = 9,881.70